Combined check book cover and calculator



FIG. 1 is a perspective view of a combined check book cover and calculator showing my new design in an open condition;

FIG. 2 is a left end elevational view thereof;

FIG. 3 is a left end elevational view thereof in a closed condition; and

FIG. 4 is a rear elevational view of FIG. 1.

The bottom surface is plain and unornamented. 

The ornamental design for a combined check book cover and calculator, substantially as shown and described. 